The Phoenix Company's famed "Boat Building," believed to be the world's first two-sided office building, will celebrate its 50th anniversary this month. Designed by architect Max Abramovitz, the landmark building was completed in 1963 and still looks remarkably the same inside and out after...

The Phoenix Company's famed "Boat Building," believed to be the world's first two-sided office building, will celebrate its 50th anniversary this month. Designed by architect Max Abramovitz, the landmark building was completed in 1963 and still looks remarkably the same inside and out after... (STEPHEN DUNN / Hartford Courant)

The main lobby of The Phoenix Company's famed "Boat Building," believed to be the world's first two sided office building, that will celebrate its 50th anniversary this month.

The main lobby of The Phoenix Company's famed "Boat Building," believed to be the world's first two sided office building, that will celebrate its 50th anniversary this month. (STEPHEN DUNN / Hartford Courant)

The Phoenix building is believed to be the world's first two-sided office building. Its shape is an elliptic lenticular cylinder, meaning if you look at it from above, the building has the shape of a short canoe or some other boat with a pointed bow and stern. For more on The Phoenix 'Boat...